Nkhaniyi makamaka amasankha MMA, BA, AA monga monomers, ndi kukambirana zinthu za kumezanitsa polymerization ndi iwo, monga zinayendera Kuwonjezera, kuchuluka ndi anachita kutentha kwa oyambitsa ndi aliyense monoma, ndipo amapeza bwino kumezanitsa polymerization ndondomeko zinthu. Mphura umayamba kufufuzidwa, kenako umagwedezeka ndi kusungunuka ndi zosungunulira zosakaniza pa 70 ~ 80 ° C, ndiyeno BPO woyambitsa amawonjezeredwa mumagulu. Woyamba monoma MMA kusungunuka ndi BOP ndi anawonjezera pa 80 ~ 90 ° C kwa mphindi 20, ndiyeno anawonjezera ndi monomer wachiwiri wa BPO, pambuyo mphindi 20, kuwonjezera monomer lachitatu pa 84 ~ 88 ℃ ndi kusonkhezera kwa mphindi 45, kusunga. kutentha kwa 1.5 ~ 2 maola, ndiye kupeza CR/MMA-BA-AA njira zitatu kumezanitsa polymerization zomatira, Peel mphamvu zazikulu kuposa CR/MMA-BA, mtengo wake ndi 6.6 KN.m-1.
Mawu ofunikira: Zomatira za neoprene, guluu wa nsapato, zomatira za neoprene zamitundu ingapo.
Cellulose etherMCndiMtengo wa HPMCkukhala ndi ntchito yabwino yobalalika, emulsification, thickening, adhesion, film mapangidwe, kusunga madzi, komanso kukhala ndi madzi osungunuka bwino, ntchito zapamtunda, kukhazikika, ndi kusungunuka kwa zosungunulira za organic.
Zogulitsa zazikulu zomwe zapangidwa pano ndi RT mndandanda wa MC ndi mitundu ya HPMC, yomwe magiredi awo ndi 50RT (Methylcellulose), 60RT (Hydroxypropylmethylcellulose), 65RT (Hydroxypropylmethylcellulose), 75RT (Hydroxypropylmethylcellulose), lolingana ndi magiredi a DOW A Chemical Company ndi Metho, F ndi K, motsatana.
Zogulitsa zamtundu wa RT ndizowonjezera zothandiza kwambiri pazomangira chifukwa chogwirizana, kukhazikika kwa kuyimitsidwa komanso kusunga madzi. Mwachitsanzo, amatha kupangidwa kukhala apamwamba kwambiri "makoma a ceramic ndi zomatira pansi", zomwe zimadziwika kuti ufa wa rabara, zomwe zakhala zikugwiritsidwa ntchito ku Beijing West Railway Station, zotsatira zake ndi zabwino. Komanso, angagwiritsidwe ntchito ngati gelled electrolyte mu electrolytic capacitors ndi bonded elekitirodi grids mu zipangizo zamagetsi, monga atropine, aminopyrine ndi kumatako makhiristo mankhwala, ndi monga thickener madzi emulsions mu utoto. Mu utoto wa latex ndi utoto wosungunuka m'madzi, ukhoza kugwiritsidwa ntchito ngati wopangira filimu, thickener, emulsifier ndi stabilizer, etc. kwa wallpaper adhesion, water rewetting rabara ufa, etc.
Mawu ofunikira: Methyl Cellulose, Hydroxy Propyl Cellulose, zomatira, kugwiritsa ntchito.
Kupititsa patsogolo madzi opangira mapepala apulasitiki pamanja
M'zaka zaposachedwa, njira yatsopano yoyika filimu yapulasitiki pazinthu zosindikizidwa yapangidwa. Ndi BOPP (filimu ya polypropylene yopangidwa ndi biaxially) yomwe imakutidwa ndi zomatira kenako yomangika pamodzi ndi zinthu zosindikizidwa mutapanikizidwa ndi silinda ya rabara ndi chowotchera kuti mupange pepala. / Pulasitiki 3-in-1 kusindikiza. Izi zikuphatikizapo vuto la mapepala ndi mapepala apulasitiki. BOPP ndi zinthu zopanda polar, chifukwa chake, pamafunika zomatira zomwe zimakhala ndi zomatira zabwino kuzinthu zonse za polar komanso zomwe sizili polar.
Kusakaniza zomatira za SBS ndi epoxy resin kumagwirizana bwino. SBS ndi viscose ya elastomer. Zitha kuwoneka kuchokera pamapindikira ake olephera kuti kuti akwaniritse zomatira zowononga za viscose, ziyenera kuyendetsedwa mozungulira SBS: epoxy resin = 2: 1. Kuchokera pamapindikira amphamvu ya peel, zitha kuwoneka kuti chiŵerengero chikakhala chapamwamba, mphamvu ya peel idzakhala yabwino, koma kumamatira kudzawonjezeka. Pofuna kupewa kumamatira, SBS: epoxy resin = 1: 1 ~ 2.5: 1 ikhoza kuwongoleredwa kuti ipeze mphamvu yokwera pang'onopang'ono ya peel. Poganizira mozama, dziwani SBS mu guluu waukulu: epoxy resin = 1: 1 ~ 3.5: 1.
Ntchito yayikulu yogwiritsira ntchito tackifying resin ndikuwonjezera mphamvu yomangirira ya matrix ndikuwongolera kunyowa kwa guluu ndi malo omangira. Utoto wa tackifying womwe umagwiritsidwa ntchito mu phunziroli ndi wopangira rosin wopangidwa ndi rosin wamba ndi dimerized rosin mosiyanasiyana. Kupyolera mu mayesero ambiri, zimaganiziridwa kuti kuchuluka kwa dimerized rosin mu tackifier ndi 22.5%, ndipo mphamvu yopukuta ya guluu yokonzedwa molingana ndi chiŵerengero ichi ndi 1.59N / 25mm (pulasitiki-pulasitiki).
Kuchuluka kwa tackifier kumakhudza kwambiri zomatira. Zotsatira zabwino kwambiri ndi pamene chiŵerengero cha guluu wamkulu ndi tackifier ndi 1: 1. Peel mphamvu N/mm pulasitiki-pulasitiki 1.4, pepala-pulasitiki 1.6.
Mu kafukufukuyu, MMA idagwiritsidwa ntchito ngati chosungunulira kusakaniza SBS ndi MMA. Mayesero apeza kuti kugwiritsa ntchito MMA sikungokwaniritsa cholinga chokanda zigawo za colloid, komanso kuchepetsa mamasukidwe akayendedwe ndikuwongolera mphamvu yomatira. Chifukwa chake, MMA ndi njira yoyenera yosinthira. Pambuyo pakuyesa, kuchuluka kwa MMA komwe kumagwiritsidwa ntchito ndi kuchuluka kwa guluu 5% ~ 10% ndikoyenera.
Popeza viscose yopangidwa iyenera kukhala yosungunuka m'madzi, timasankha latex yoyera (polyvinyl acetate emulsion) ngati chonyamulira chosungunuka m'madzi. Kuchuluka kwa latex yoyera kumawerengera 60% ya viscose yonse. Pambuyo pa madzi opangidwa ndi viscose ndi emulsified mu madzi-emulsion boma mwa kubalalitsidwa ndi emulsification wa chonyamulira emulsified, ngati kuchepetsedwa kugwirizana kwake si koyenera ntchito, akhoza kuchepetsedwa ndi madzi. Njira yochepetsera iyi ndi yotsika mtengo komanso yopanda poizoni (palibe chifukwa chogwiritsa ntchito zosungunulira za organic), ndipo madzi osungunuka bwino kwambiri ndi 10% ~ 20%.
Pofuna kuchotsa zotsalira za viscose, zimayesedwa kuti njira yothetsera Na2CO3 imagwiritsidwa ntchito ngati alkalizing agent, ndipo zotsatira zake ndi zabwino kwambiri. Lingaliro la mphamvu ya alkalizing agent lingakhale lakuti saponification reaction imayambitsa ayoni amphamvu a polar, monga ayoni a sodium, kotero kuti asidi woyambirira wosasungunuka wa rosin amasandulika mchere wosungunuka wa sodium. Kuonjezera apo, ngati maziko amphamvu kwambiri akuwonjezeredwa ku guluu, mphamvu yomatira idzatayika, kotero kuti guluu lilephera, kotero guluu siliyenera kukhala ndi chilengedwe cha alkaline.
Njira yoyenera kuyenda.
Nthawi yotumiza: Apr-25-2024